CN110471932A

CN110471932A - Invoice management method and system based on block chain

Info

Publication number: CN110471932A
Application number: CN201910745855.XA
Authority: CN
Inventors: 何力骜; 杨凯华
Original assignee: Love Letter And Letter Co Ltd
Current assignee: Love Letter And Letter Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2019-11-19

Abstract

The embodiment of the present application provides a kind of invoice management method and system based on block chain.This method comprises: obtaining the element information of the candidate invoice for being associated with invoice event and candidate invoice；In response to the cochain request of invoice event, to prove state according to the financing of the element information of candidate invoice query candidate invoice in block chain；According to financing evidence state, the candidate invoice for being matched with invoice event is filtered out from candidate invoice and as the target invoice for participating in invoice event；Terminate in response to invoice event, the financing evidence state of the candidate invoice as target invoice is updated in block chain.By carrying out financing evidence status inquiry to the candidate invoice for executing invoice event in block chain, the target invoice for invoice event is filtered out；Invoice event terminates, and is updated in block chain to the financing evidence state of target invoice in time, the characteristic that can not be distorted using information in block chain records the effective status of invoice, realizes effective control of invoice.

Description

Invoice management method and system based on block chain

Technical field

The invention relates to Internet technical field more particularly to a kind of invoice management method based on block chain and System.

Background technique

Supply chain finance achieves in China advance by leaps and bounds in recent years as the effective way for solving Financing Development, at home under the economic overall background for continuing transition and upgrade, supply chain finance attracts attention.And due to participating in supply chain finance Enterprise it is numerous, credit standing is very different, and financial institution is during carrying out supply chain financial service, on the one hand, to supply Trade authenticity between chain enterprise is difficult to define, and is easy to appear forgery, adulterium trade contract and invoice information, fabricates dealing pair Side's transaction, to extract the behavior of bank capital using bill material malice；On the other hand, in finance process, to may deposit Recycling bill material carry out financing difficulties effectively to manage.Thus, effectively manage the bill material in supply chain finance It is of great significance to the risk for reducing supply chain finance.

Summary of the invention

In view of this, one of the technical issues of the embodiment of the present application is solved is to provide a kind of invoice based on block chain Management method and system, by carrying out financing evidence status inquiry, sieve to the candidate invoice for carrying out invoice event in block chain It selects the target invoice that can be used for invoice event, after the completion of invoice event, the financing of target invoice is helped in block chain in time Card state is updated, and the characteristic that can not be distorted using information in block chain records the effective status of invoice, and that realizes invoice has Effect control.

The embodiment of the present application provides a kind of invoice management method based on block chain, comprising: acquisition is associated with invoice thing The element information of the candidate invoice of part and the candidate invoice；In response to the cochain request of the invoice event, according to The element information of candidate invoice inquires the financing evidence state of the candidate invoice in the block chain；It is helped according to the financing Card state filters out the candidate invoice for being matched with the invoice event and as the participation hair from the candidate invoice The target invoice of ticket event；Terminate in response to the invoice event, to the time as the target invoice in the block chain The financing evidence state for publishing ticket is updated.

Optionally, in any embodiment of the application, described obtain is associated with the candidate invoice of invoice event and described The element information of candidate invoice includes: according to the essence of a contract of the contract for being associated with the invoice event of user's input, from hair The candidate invoice associated with the contract is obtained in ticket data library；The candidate invoice is handled, described in acquisition The element information of candidate invoice.

Optionally, in any embodiment of the application, described obtain is associated with the candidate invoice of invoice event and described The element information of candidate invoice further include: whether the candidate invoice for being associated with the invoice event that verifying user provides is true Invoice；If candidate's invoice is definite invoice, the candidate invoice is handled, obtains the element letter of the candidate invoice Breath.

Optionally, described to be associated with the invoice event according to what user provided in any embodiment of the application Candidate invoice, it includes: to carry out format to the candidate invoice that user provides that whether the verifying candidate invoice, which is definite invoice, Identification judges the candidate invoice with the presence or absence of format error according to format identification result；If lattice are not present in candidate's invoice Formula mistake then carries out verification to the candidate invoice, judges whether the candidate invoice is definite invoice according to verification result.

Optionally, in any embodiment of the application, if format error is not present in candidate's invoice, to the time It publishes ticket and carries out verification, after judge whether candidate's invoice is definite invoice step according to verification result, further includes: if institute Stating candidate invoice is definite invoice, and the verification result of the candidate invoice is uploaded to the invoice database and the block chain In.

Optionally, in any embodiment of the application, if candidate's invoice is definite invoice, by the candidate If it includes: the candidate invoice that user provides that the verification result of invoice, which is uploaded in the invoice database and the block chain, It is middle there are the candidate invoice of user's input have to prime information, then prime information and described candidate have to send out user's input The standard of ticket have to prime information be compared；Determined whether the verification result being uploaded to the invoice number according to comparison result According in library and the block chain.

Optionally, in any embodiment of the application, if format error is not present in candidate's invoice, to the time It publishes ticket and carries out verification, after judge whether candidate's invoice is definite invoice step according to verification result, further includes: if institute Stating candidate invoice is definite invoice, judges whether the ticket information of the candidate invoice is complete；If the nominal value of candidate's invoice Information is complete, then the ticket information of the candidate invoice is uploaded in the invoice database and the block chain；If described The ticket information of candidate invoice is imperfect, then carries out completion to the ticket information of the candidate invoice, by the candidate invoice Ticket information be uploaded in the invoice database and the block chain.

Optionally, in any embodiment of the application, format identification is being carried out to the candidate invoice that user provides, After judging the step of candidate invoice is with the presence or absence of format error according to format identification result, further includes: if the candidate There are format errors for invoice, then user is prompted to carry out format change to the candidate invoice of offer, and to format change after Candidate invoice re-starts format identification, and the candidate invoice after judging format change is with the presence or absence of format error.

Optionally, described that format knowledge is carried out to the candidate invoice that user provides in any embodiment of the application Not, judging that the candidate invoice whether there is format error according to format identification result includes: to identify micro services based on invoice, right The candidate invoice that user provides carries out format identification, obtains the format verification information of the candidate invoice；According to the lattice Formula verification information judges the candidate invoice with the presence or absence of format error.

Optionally, in any embodiment of the application, if format error is not present in candidate's invoice, to institute It states candidate invoice and carries out verification, if judge that candidate's invoice whether be definite invoice includes: the candidate according to verification result Format error is not present in invoice, then identifies micro services based on invoice, identifies to the candidate invoice, extracts the candidate hair The verification information of ticket；Based on invoice verification micro services, the candidate invoice is verified according to the verification information, according to testing Card result determines whether the candidate invoice is definite invoice.

The embodiment of the present application also provides a kind of managing bill system based on block chain, comprising: invoice and invoice information obtain Unit is taken, is configured to obtain the element information of the candidate invoice for being associated with invoice event and the candidate invoice；Financing evidence shape State query unit is configured to the cochain request in response to the invoice event, to be existed according to the element information of the candidate invoice The financing evidence state of the candidate invoice is inquired in the block chain；Target invoice screening unit is configured to melt according to Evidence state is provided, the candidate invoice for being matched with the invoice event is filtered out from the candidate invoice and as participation institute State the target invoice of invoice event；Financing evidence state updating unit, is configured to terminate in response to the invoice event, described The financing evidence state of the candidate invoice as the target invoice is updated in block chain.

Optionally, in any embodiment of the application, the invoice and invoice information acquiring unit include: that invoice obtains Module is configured to the essence of a contract of the contract for being associated with the invoice event inputted according to user, obtains from invoice database Take the candidate invoice associated with the contract；Invoice information obtains module, is configured to at the candidate invoice Reason obtains the element information of the candidate invoice.

Optionally, in any embodiment of the application, the invoice and invoice information acquiring unit include: invoice verification Module, is configured to whether the candidate invoice for being associated with the invoice event that verifying user provides is definite invoice；Invoice information Module is obtained, if being configured to the candidate invoice is definite invoice, the candidate invoice is handled, obtains the candidate hair The element information of ticket.

Optionally, in any embodiment of the application, the invoice verification module includes: that invoice format judgement is single Member, the candidate invoice for being configured to provide user carry out format identification, judge the candidate hair according to format identification result Ticket whether there is format error；The true and false judgment sub-unit of invoice, if being configured to the candidate invoice, there is no format errors, right Candidate's invoice carries out verification, judges whether the candidate invoice is definite invoice according to verification result.

Optionally, in any embodiment of the application, the managing bill system further include: leaflet in invoice verification result The verification result of the candidate invoice is uploaded to the invoice data if being configured to the candidate invoice is definite invoice by member In library and the block chain.

Optionally, in any embodiment of the application, the invoice verification result uploading unit includes: have to prime information Comparison module, if being configured to plain have to believe there are the candidate invoice of user's input in the candidate invoice of user's offer Breath, then by user input have to prime information with it is described candidate invoice standard have to prime information be compared；Invoice verification knot Fruit uploading module is configured to determine whether for the verification result to be uploaded to according to comparison result the invoice database and described In block chain.

Optionally, in any embodiment of the application, the managing bill system further include: ticket information inspection unit, If being configured to the candidate invoice is definite invoice, judge whether the ticket information of the candidate invoice is complete；Ticket information is deposited The ticket information of the candidate invoice is uploaded to institute if the ticket information for being configured to the candidate invoice is complete by storage unit It states in invoice database and the block chain；Ticket information completion unit, if being configured to the ticket information of the candidate invoice not Completely, then completion is carried out to the ticket information of the candidate invoice, the ticket information of the candidate invoice is uploaded to described In invoice database and the block chain.

Optionally, in any embodiment of the application, the invoice verification module further include: invoice format change is single Member, if being configured to the candidate invoice, there are format errors, and user is prompted to carry out format more to the candidate invoice of offer Change, and format identification is re-started to the candidate invoice after format change, the candidate invoice after judging format change whether there is Format error.

Optionally, in any embodiment of the application, the invoice format judgment sub-unit includes: format verification information Acquisition submodule is configured to invoice identification micro services, carries out format identification to the candidate invoice that user provides, obtains The format verification information of candidate's invoice；Format error judging submodule is configured to according to the format verification information, judgement Candidate's invoice whether there is format error.

Optionally, in any embodiment of the application, the true and false judgment sub-unit of invoice includes: verification information extraction Submodule, if being configured to the candidate invoice, there is no format errors, identify micro services based on invoice, to the candidate invoice It is identified, extracts the verification information of the candidate invoice；True and false judging submodule is configured to invoice verification micro services, The candidate invoice is verified according to the verification information, determines whether the candidate invoice is true according to verification result Invoice.

The invoice management method and system based on block chain of the embodiment of the present application obtains the candidate for being associated with invoice event The element information of invoice and the candidate invoice；In response to the cochain request of the invoice event, according to the candidate invoice Element information the financing evidence state of the candidate invoice is inquired in the block chain；According to the financing evidence state, The candidate invoice for being matched with the invoice event is filtered out from the candidate invoice and as the participation invoice event Target invoice；Terminate in response to the invoice event, to the candidate invoice as the target invoice in the block chain Financing evidence state be updated.By carrying out financing evidence state to the candidate invoice for carrying out invoice event in block chain Inquiry, filters out the target invoice that can be used for invoice event；After the completion of invoice event, in time to target invoice in block chain Financing evidence state is updated, and the characteristic that can not be distorted using information in block chain records the effective status of invoice, realizes hair Effective control of ticket.

Detailed description of the invention

The some specific of the embodiment of the present application is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter Embodiment.Identical appended drawing reference denotes same or similar part or part in attached drawing.Those skilled in the art should manage Solution, the drawings are not necessarily drawn to scale.In attached drawing:

Fig. 1 is the flow diagram of the invoice management method based on block chain according to shown in the application first embodiment；

Fig. 2 is the flow diagram of the element information of the candidate invoice of the acquisition according to shown in the application second embodiment；

Fig. 3 is the flow diagram of the element information of the candidate invoice of the acquisition according to shown in the application 3rd embodiment；

Fig. 4 be the candidate invoice of verifying according to shown in the application fourth embodiment whether be definite invoice process signal Figure；

Fig. 5 is that the candidate invoice of the judgement according to shown in the 5th embodiment of the application is illustrated with the presence or absence of the process of format error Figure；

Fig. 6 is whether the candidate invoice that format error is not present in verifying according to shown in the application sixth embodiment is true The flow diagram of invoice；

Fig. 7 is the flow diagram of the invoice management method based on block chain according to shown in the 7th embodiment of the application；

Fig. 8 is the flow diagram of the invoice management method based on block chain according to shown in the 8th embodiment of the application；

Fig. 9 is the structural schematic diagram of the managing bill system based on block chain according to shown in the 9th embodiment of the application；

Figure 10 is invoice and the structural schematic diagram of invoice information acquiring unit according to shown in the tenth embodiment of the application；

Figure 11 is invoice and the structural schematic diagram of invoice information acquiring unit according to shown in the 11st embodiment of the application；

Figure 12 is the structural schematic diagram of the invoice verification module according to shown in the 12nd embodiment of the application；

Figure 13 is the structural schematic diagram of the invoice format judgment sub-unit according to shown in the 13rd embodiment of the application；

Figure 14 is the structural schematic diagram of the true and false judgment sub-unit of invoice according to shown in the 14th embodiment of the application；

Figure 15 is the structural representation of the managing bill system based on block chain according to shown in the 15th embodiment of the application Figure；

Figure 16 is the structural representation of the managing bill system based on block chain according to shown in the 16th embodiment of the application Figure；

Figure 17 is the structural representation of the managing bill system based on block chain according to shown in the 17th embodiment of the application Figure；

Figure 18 is the configuration diagram of the block chain network according to shown in the 18th embodiment of the application.

Specific embodiment

Any technical solution for implementing the embodiment of the present application must be not necessarily required to reach simultaneously above all advantages.

In order to make those skilled in the art more fully understand the technical solution in the embodiment of the present application, below in conjunction with the application Attached drawing in embodiment, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described reality Applying example only is the embodiment of the present application a part of the embodiment, instead of all the embodiments.Based on the implementation in the embodiment of the present application The range of the embodiment of the present application protection all should belong in example, those of ordinary skill in the art's every other embodiment obtained.

Further illustrate that the embodiment of the present application implements below with reference to the embodiment of the present application attached drawing.

Fig. 1 is the flow diagram of the invoice management method based on block chain according to shown in the application first embodiment； As shown in Figure 1, the invoice management method includes:

Step S101, the element information of the candidate invoice for being associated with invoice event and the candidate invoice is obtained；

It should be noted that being illustrated in the embodiment by invoice event of invoice financing, the hair for invoice financing Ticket or bill are herein collectively referred to as candidate invoice, melt it is important to note that not all invoice may be used to invoice Money, the candidate invoice for only meeting certain condition requirement can be only used for invoice financing, such as: the invoice for invoice financing must Must be true, legal, effective, ticket information is consistent with commodity transaction content, meets the requirement etc. of purchase order.

The ticket information of invoice generally comprises: invoice codes, invoice number, date of making out an invoice, check code, identification number, purchase Square title, purchaser's Taxpayer Identification Number, purchaser address phone, purchaser bank of deposit and account, password area, the total capitalization of valence tax, valence Tax add up to small letter, pin side's enterprise name, pin side's Taxpayer Identification Number, pin side address phone, Xiao Fang bank of deposit and account, remarks, Cargo or dutiable service, service name, specifications and models, unit, quantity, unit price, the amount of money, the tax rate, the amount of tax to be paid.The element of candidate invoice Information is a part of the ticket information of candidate's invoice, under normal circumstances, reflects candidate's invoice in invoice financing Publicity register information.Here, the element information of candidate invoice includes: invoice codes, invoice number, the amount of money (without tax), makes out an invoice 6 after date and check code, they have defined reference format requirement, to register for the publicity of invoice financing.

In the embodiment, the candidate invoice for invoice financing can be the matched hair from third-party invoice database Ticket is also possible to customer-furnished invoice, is limited herein not to this.Candidate invoice is either from invoice database What the invoice of acquisition or user provided, it is possible to comprising multiple invoices；Extract element information (hair in each candidate invoice 6 after ticket code, invoice number, the amount of money (be free of tax), make out an invoice date and check code) subitem or whole, in order under One step carries out status inquiry to candidate's invoice.

It should be noted that the element information of VAT invoice necessarily includes: invoice codes, invoice number, the amount of money It (be free of tax) and makes out an invoice the date, no to " test code after 6 " when the financing for carrying out VAT invoice proves status inquiry It is strictly required, it is not essential；The element information of value-added tax common invoice necessarily includes: invoice codes, invoice number, makes out an invoice day 6 after phase and check code, when the financing for carrying out value-added tax common invoice proves status inquiry, " amount of money (being free of tax) " is not done Mandatory requirement is not essential.Here, the financing evidence state representation of invoice is the current state of the invoice, comprising: without financing Evidence, pledge of accounts receivable, accounts receivable credit, accounts receivable transfer, bill hypothecation, discounted note, other financing evidences are (standby Note), all evidences finance paid off.Wherein, the financing evidence state of invoice is to have gone back without financing evidence or all evidences financing When clear, show that the invoice can be used for invoice financing.

Step S102, it is requested in response to the cochain of the invoice event, to be existed according to the element information of the candidate invoice The financing evidence state of the candidate invoice is inquired in the block chain；

When user has the demand of invoice financing, proposes the request of invoice financing to financial institution, financial institution receives The request for the invoice financing that user proposes, needs in block chain, according to the element information of candidate invoice, mentions to user is associated with The financing evidence state of the candidate invoice of invoice financing out is inquired, and confirms the information of candidate's invoice in block chain Financing evidence state.If the relevant information of candidate's invoice is not present in block chain, it may be considered that candidate's invoice is without melting Money evidence, can be used for carrying out invoice financing；If the relevant information of candidate's invoice is present in block chain, confirm that the candidate sends out Whether the financing evidence state of ticket is to have paid off without financing evidence or all evidences financing, if the financing of candidate's invoice proves shape State is to have paid off without financing evidence or all evidences financing, then confirms that candidate's invoice can be used for carrying out invoice financing.Financial machine Structure confirms the request for the invoice financing that user proposes, that is, is considered to propose the cochain request of invoice financing.

Under normal conditions, the candidate invoice for being associated with invoice financing includes that VAT invoice and value-added tax are commonly sent out Ticket, it is common according to VAT invoice and/or value-added tax after the cochain request for receiving invoice financing in the embodiment The element information of invoice inquires the financing evidence shape of the VAT invoice and/or value-added tax common invoice in block chain State, determines whether the VAT invoice and/or value-added tax common invoice can be used for invoice financing.

Herein, it should be noted that the VAT invoice and/or value-added tax common invoice can be used for invoice financing packet Containing two kinds of situations: the first situation is that the VAT invoice and/or value-added tax common invoice are not present in block chain, That is the VAT invoice and/or value-added tax common invoice never carried out invoice financing, the VAT invoice And/or value-added tax common invoice can be directly used for invoice financing；Second case is the VAT invoice and/or value-added tax Common invoice exists in block chain, illustrates to carry out invoice before the VAT invoice and/or value-added tax common invoice Financing or other operations, need to check at this time the VAT invoice and/or whether value-added tax common invoice proves without financing Or financing evidence has been paid off, if the VAT invoice and/or value-added tax common invoice without financing evidence or finance evidence It pays off, then the VAT invoice and/or value-added tax common invoice can also carry out invoice financing.

Step S103, it according to the financing evidence state, is filtered out from the candidate invoice and is matched with the invoice thing The candidate invoice of part and as the target invoice for participating in the invoice event；

Due to and the not all candidate invoice for being associated with invoice financing can be used in invoice financing, it is then desired to according to looking into The financing for the candidate invoice ask proves state, and from rejecting in candidate invoice, state is pledge of accounts receivable, answers in block chain Receipt on account money credit, accounts receivable transfer, bill hypothecation, discounted note, other financings prove the invoice of (remarks), filter out block The invoice being not present in chain or/and target invoice of the invoice proved and paid off as financing of proving and/or finance without financing.

Step S104, terminate in response to the invoice event, to the time as the target invoice in the block chain The financing evidence state for publishing ticket is updated.

Will from invoice being screened in candidate invoice, being not present in block chain or/and without financing evidence and/or After the target invoice that financing evidence has been paid off is used for invoice financing, timely to the candidate invoice in block chain as target invoice Financing evidence state be updated, the information of the candidate invoice for being used for invoice financing being not present in block chain originally is recorded Enter in block chain, and identifies candidate's invoice and have been used for financing evidence；Will originally present in the block chain without financing evidence and/ Or the state of invoice that financing evidence has been paid off is changed to financing evidence.In this way, the spy that can not be distorted using information in block chain Property, the effective status of invoice is recorded, effectively to be managed in block chain candidate's invoice, knows this convenient for other needs The user of candidate invoice status can timely know its last state, timely to have demand individual (including financial institution, Enterprise customer, reference unit etc.) it is notified to the abnormalities such as calcellation, the red punching of the relevant invoice of trade/transaction, assist financial institution Finance loan mortgage transaction evidence information, effectively tracking user financing loan documentation are checked, is repeated to reach prevention account due Financing reduces supply chain financial risks, realizes effective control of invoice.

Fig. 2 is the flow diagram of the element information of the candidate invoice of the acquisition according to shown in the application second embodiment；Such as Shown in Fig. 2, the element information for obtaining the candidate invoice for being associated with invoice event and the candidate invoice includes:

Step S201, according to the essence of a contract of the contract for being associated with the invoice event of user's input, from invoice data The candidate invoice associated with the contract is obtained in library；

In this step, the contract for being associated with invoice financing is provided by user, which relies on the specific friendship of both sides of supply and demand Easily, premised on authenticity of trading, user provides the contract as business voucher, passes through during carrying out invoice financing The information such as the Party A (purchaser), Party B (pin side), the amount of money, time, the trading object that provide on the contract, are obtained from invoice database Take invoice associated with the contract, these invoices are by the candidate invoice as this invoice financing.

In the embodiment, invoice database is the database that third party provides, and is stored with a large amount of invoice data, needs Bright, the candidate invoice obtained from invoice database is invoice image, that is to say, that the invoice for including in invoice database It is the invoice image of the correct definite invoice of format.

Specifically, micro services are matched based on invoice, according to the essence of a contract of the contract of user's input, from invoice database It is middle to obtain the candidate invoice associated with the contract.Here, the essence of a contract of contract includes purchaser, pin side, without tax The amount of money, date.Wherein, it is necessary to which inputting essence of a contract is purchaser, pin side and date.According to the essence of a contract information of input, adjust With the interface of invoice database, candidate invoice associated with the essence of a contract information of input is obtained from invoice database.

Herein, it should be noted that invoice matching micro services can be provided by third party, for based on contract element, from hair Candidate invoice associated therewith is obtained in ticket data library, is not limited thereto.Candidate is sent out in addition, third party can also provide Ticket is identified, is extracted the invoice identification micro services of candidate invoice relevant information and is verified the true and false invoice verification of candidate invoice Micro services.Micro services, invoice identification micro services and invoice verification micro services are matched by the invoice that third party provides, so that single Item work separately independently executes, more easy, can be significantly more efficient independently updated using computing resource and progress, to demand Carry out quick response.

In addition, in the embodiment, it is associated with the essence of a contract information of input also according to being obtained from invoice database Candidate invoice exports the ticket information of candidate invoice；If there is multiple candidate invoices, then the nominal value of all candidate invoices is returned Information.Likewise, the ticket information of candidate invoice should meet defined reference format requirement.

Step S202, the candidate invoice is handled, obtains the element information of the candidate invoice；

In the embodiment, it is based on deep learning, the invoice image of the candidate invoice obtained from invoice database is carried out Image recognition extracts the element information of candidate invoice from the invoice image of candidate invoice.Wherein, image is carried out to invoice image Identification includes: that the text in invoice image is split, identifies and is parsed and is known to the two dimensional code in invoice image Not and parsing, it is identified and parsing result.

After the completion of image recognition, need according to identification and parsing result, to the information for including in identification and parsing result into Row confirmation.Wherein, necessarily include: invoice codes in the identification and parsing result of VAT invoice, invoice number, make out an invoice day Phase, the amount of money of making out an invoice (being free of tax), these information are the element information of corresponding VAT invoice；Value-added tax common invoice Identification and parsing result in necessarily include: invoice codes, invoice number, date of making out an invoice, identifying code, these information are to correspond to Value-added tax common invoice element information.

If discovery is too low to the discrimination of invoice image when confirming to identification and parsing result, cause wherein The information for including is not comprehensive, then can be carried out again to invoice image using the image recognition technology of deep learning algorithm fusion Identification, until meeting demand to identification and parsing result.

Here, the image recognition technology used includes but is not limited to statistical-simulation spectrometry, configuration mode identification and obscures Pattern-recognition is split the image of candidate invoice by above-mentioned one or more image recognition technologys, and then extracts time Publish the element information of ticket.It should be noted that the method for carrying out image segmentation to candidate invoice includes but is not limited to threshold value point Segmentation method, edge detection method, method for extracting region, gray level image segmentation, color images and Study Of Segmentation Of Textured Images etc., This is no longer going to repeat them.

The invoice image of candidate invoice for carrying out image recognition may include individual invoice image file (comprising individual Invoice image), multiple invoice image files or individual invoice image file comprising multiple invoice images, the lattice of invoice image Formula does not do specific requirement, can be the formatted files such as jpg, png, bmp.

Fig. 3 is the flow diagram of the element information of the candidate invoice of the acquisition according to shown in the application 3rd embodiment；Such as Shown in Fig. 3, the element information for obtaining the candidate invoice for being associated with invoice event and the candidate invoice includes:

Step S301, whether the candidate invoice for being associated with the invoice event that verifying user provides is definite invoice；

In the embodiment, the candidate invoice for being associated with invoice financing is provided by user, and is obtained from invoice database Unlike candidate invoice: the candidate invoice obtained from invoice database is the correct definite invoice of format, and user mentions The candidate invoice supplied is since source is various, thus authenticity subject to confirmation.For example, user provide be designed for invoice financing VAT invoice/value-added tax common invoice there may be false invoice, write out falsely invoice, apply invoice etc..Thus, to for sending out The candidate invoice of ticket financing carries out authenticity verification, can examine transaction/trade authenticity of user, power-assisted financial institution Risk is effectively managed in credit.

When being verified to candidate's invoice, by the database of the State Tax Administration or/third party database Candidate's invoice is inquired, shows that candidate's invoice has been issued, and invoice status shows and do not cancel, then candidate's invoice is as true Real invoice.Herein, it should be noted that the invoice of support verifying authenticity includes but is not limited to VAT invoice, increment Tax common invoice (including electronics common invoice, roll type bill), motor vehicle sale uniform invoice, carrying trade value-added tax are dedicated Invoice etc..

If step S302, the described candidate invoice is definite invoice, the candidate invoice is handled, the candidate is obtained The element information of invoice.

In the step, handle by being verified as true candidate invoice, obtain the element information of candidate invoice with Operation in step S202 is similar, and this is no longer going to repeat them.

Fig. 4 be the candidate invoice of verifying according to shown in the application fourth embodiment whether be definite invoice process signal Figure；As shown in figure 4, whether verifying the candidate invoice according to the candidate invoice for being associated with the invoice event that user provides Include: for definite invoice

Step S401, format identification is carried out to the candidate invoice that user provides, institute is judged according to format identification result Candidate invoice is stated with the presence or absence of format error；

In the embodiment, the candidate invoice for being associated with invoice financing that user provides inevitably will appear due to source multiplicity The format of invoice and defined reference format require inconsistent situation, will require inconsistent situation with defined reference format It is referred to as the format error of invoice.For example, requiring invoice codes in VAT invoice is 10 or 12 bit digitals；Invoice number Code is 8 bit digitals；The date make out an invoice as character type, format is XXXX XX month XX day (such as on October 27th, 2016)；It makes out an invoice the amount of money (being free of tax) is number.If in the VAT invoice for invoice financing that user provides, invoice number is 10 bit digitals, So just inconsistent with defined reference format (8 bit digital), there are format errors；What either user provided melts for invoice As soon as it is string literal at the amount of money of making out an invoice of the VAT invoice of money, then it is inconsistent with defined reference format (number), There are format errors.

Format identification is carried out by the invoice image to candidate invoice, gets the letter in candidate invoice in relation to invoice format Breath, it is compared in the database of the State Tax Administration or third partner with defined reference format, should with judgement Candidate invoice whether there is format error.

Herein, it should be noted that the project that format identification can be carried out in candidate invoice includes: invoice codes, invoice Number, date of making out an invoice, check code, identification number, purchaser's title, purchaser's Taxpayer Identification Number, purchaser address and phone, Gou Fangkai Family row and account, password area, the total capitalization of valence tax, the total small letter of valence tax, pin side's enterprise name, pin side's Taxpayer Identification Number, pin Square address and phone, Xiao Fang bank of deposit and account, remarks, cargo or dutiable service and service name, specifications and models, unit, number Amount, unit price, the amount of money, the tax rate, the amount of tax to be paid.

If format error is not present in step S402, the described candidate invoice, verification is carried out to the candidate invoice, according to testing True result judges whether the candidate invoice is definite invoice.

If judging that format error is not present in candidate invoice according to format identification result, directly candidate's invoice can be executed Verification operation.If judging candidate invoice according to recognition result, there are format errors, error description is returned to, it is indicated that there are format mistakes Place accidentally prompts user to carry out format change to the candidate invoice of offer, and to the candidate invoice weight after format change New to carry out format identification, the candidate invoice after judging format change moves in circles with the presence or absence of mistake, until candidate invoice is not deposited Verification operation is executed in format error, then to candidate's invoice.Candidate invoice has been issued by verifying discovery, candidate's invoice, And invoice status shows and does not cancel, then candidate's invoice is definite invoice.

Fig. 5 is that the candidate invoice of the judgement according to shown in the 5th embodiment of the application is illustrated with the presence or absence of the process of format error Figure；As shown in figure 5, carrying out format identification to the candidate invoice that user provides, the time is judged according to format identification result Ticket, which is published, with the presence or absence of format error includes:

Step S501, micro services are identified based on invoice, format identification is carried out to the candidate invoice that user provides, is obtained The format verification information of candidate's invoice；

In the step, invoice identification micro services are mainly used for carrying out image recognition to the invoice image of candidate invoice, adopt Recognition methods can refer to the image-recognizing method in above-mentioned second embodiment, and this is no longer going to repeat them.

Format identification is carried out by the invoice image to candidate invoice, extracts the format verification information of candidate invoice, format The extraction operation of verification information can refer in above-mentioned second embodiment and handle candidate invoice, obtain the element of candidate invoice The operation of information, no longer repeats one by one in detail.Herein, it should be noted that the format that VAT invoice must be obtained Verification information includes: invoice codes, invoice number, date of making out an invoice, the amount of money of making out an invoice (without tax), remaining information is optional authentication letter Breath；Include: invoice codes, invoice number for the format verification information that value-added tax common invoice must obtain, the date of making out an invoice, test Code is demonstrate,proved, remaining is optional authentication information.In actual application process, should according to different invoice types (or bill type) into Row identification, extracts its format verification information.

Step S502, according to the format verification information, judge the candidate invoice with the presence or absence of format error.

The format verification information obtained according to step S501 passes through the database or third party's data with the State Tax Administration Reference format information in library is compared, to determine whether the format of candidate's invoice meets the State Tax Administration or third party The requirement of reference format specified in database, such as: invoice codes are either 12 or are 10 bit digitals；Invoice number is 8 Number；If it is VAT invoice, it is necessary to include the amount of money, and be number, retain 2 decimals；It is common if it is value-added tax Invoice, it is necessary to include check code, and be 6；Non- empty check of remaining essential option etc. judges that candidate's invoice whether there is with this Format error.

In the embodiment, invoice identification micro services are utilized, so that individual event work independently executes, more easy, Neng Gougeng Add effectively using computing resource and carry out it is independently updated, to demand progress quick response.Herein, it should be noted that hair Ticket identification micro services, invoice verification micro services and invoice matching micro services can be provided by third party, be not limited thereto.

Fig. 6 is whether the candidate invoice that format error is not present in verifying according to shown in the application sixth embodiment is true The flow diagram of invoice；As shown in fig. 6, being carried out if format error is not present in candidate's invoice to the candidate invoice Verification judges whether the candidate invoice is that definite invoice includes: according to verification result

If format error is not present in step S601, the described candidate invoice, micro services are identified based on invoice, to the candidate Invoice is identified, the verification information of the candidate invoice is extracted；

In the step, invoice identification micro services are mainly used for carrying out image recognition to the invoice image of candidate invoice, extract The verification information of candidate invoice, the recognition methods used can refer to the image-recognizing method in above-mentioned second embodiment, herein No longer repeat one by one.

Herein, it should be noted that due to invoice (or bill) wide variety, thus necessity of every kind of invoice (or bill) Verification information is different.Such as: necessary verification information includes: invoice codes, invoice number, opens in VAT invoice Ticket date, the amount of money of making out an invoice (being free of tax)；The necessary verification information of value-added tax common invoice includes: invoice codes, invoice number, opens Ticket date, identifying code.It, should verification information determines according to actual conditions during verification practical to invoice.

Step S602, invoice verification micro services are based on, the candidate invoice are verified according to the verification information, root Determine whether the candidate invoice is definite invoice according to verification result.

According to the verification information of the candidate invoice extracted in step S601, by invoice verification micro services by it in country It is inquired in the database or third party database of State Administration of Taxation, sees whether the verification information of candidate's invoice is correct.If through Inquiry is it is found that the verification information extracted shows that candidate's invoice has been issued, and invoice status shows and do not cancel, then the candidate sends out Ticket is definite invoice.

Fig. 7 is the flow diagram of the invoice management method based on block chain according to shown in the 7th embodiment of the application； Unlike embodiment illustrated in fig. 4, in the invoice management method of the embodiment, if there is no format mistakes for candidate's invoice Accidentally, then verification is carried out to the candidate invoice, the step of whether candidate invoice is definite invoice is judged according to verification result Later, further includes: if candidate's invoice is definite invoice, the verification result of the candidate invoice is stored in the invoice data In library and the block chain.The verification result of candidate invoice is uploaded in the invoice database and the block chain, is helped In timely carrying out improving update to the information in invoice database and block chain.

As shown in fig. 7, the verification result of the candidate invoice is uploaded to described if candidate's invoice is definite invoice Include: in invoice database and the block chain

If step S701, in the candidate invoice that user provides there are the candidate invoice of user's input have to element Information, then by user input have to prime information with it is described candidate invoice standard have to prime information be compared；

In the embodiment, since candidate invoice is what user provided, thus, inevitably there is mistake, especially one The information of a little users oneself inputs is easier mistake occur, for the appearance for reducing mistake to the greatest extent, in candidate invoice have to element Information can permit user's input, and element information then avoids user from inputting as far as possible.In the embodiment, the candidate that user provides is sent out In ticket, if there is user input have to prime information, then by verification result, (whether invoice is issued, invoice status is shown Whether be voided check) be uploaded in invoice database and block chain before, it is necessary to these have to prime information verify, will Its with standard have to prime information compared one by one, to guarantee the correct of the information being uploaded in invoice database and block chain Property.

Herein, it should be noted that candidate invoice have to prime information include pin side's information (title, identifier, address, Bank of deposit and account)；Purchaser's information；Product name, the tax rate and remarks etc..And standard have to prime information then pass through the national tax The database or third party database of general bureau obtain, by user's input have to prime information and the State Tax Administration database or Standard in third party database have to prime information be compared, to determine the correctness of its information.

Step S702, determine whether for the verification result to be uploaded to the invoice database and described according to comparison result In block chain.

Comparison result show user input have to prime information it is correct, so that it may verification result is uploaded to invoice database In block chain, timely the information of candidate's invoice in invoice database and block chain is carried out improving update.

In the embodiment, there is also a kind of situation be, if in candidate invoice there are user's input have to prime information, that To this have to prime information verified one by one, and, to candidate's invoice carry out verification；Have to prime information verify no mistake Miss and then return the verification result of candidate invoice；If not element information is verified, there are mistakes, then return to miscue, it is indicated that In candidate's invoice exist mistake place, be modified by user, after change, then carry out have to prime information verification, Until have to prime information check and find correct, return to the verification of candidate invoice as a result, and by verification result be uploaded to invoice database and In block chain.

Fig. 8 is the flow diagram of the invoice management method based on block chain according to shown in the 8th embodiment of the application； As shown in figure 8, unlike embodiment illustrated in fig. 4, in the invoice management method of the embodiment, if candidate's invoice is not deposited In format error, then verification is carried out to the candidate invoice, judge whether the candidate allocation is really to send out according to verification result After ticket step, further includes:

If step S801, the described candidate invoice is definite invoice, judge whether the ticket information of the candidate invoice is complete；

In the step, after candidate invoice validation is definite invoice, micro services are identified by invoice, are extracted in candidate invoice Existing ticket information judges whether the ticket information of candidate invoice is complete according to existing ticket information.Here, needing to illustrate , complete ticket information includes: invoice codes, invoice number, date of making out an invoice, the amount of money of making out an invoice (without tax), identifying code (increasing Be worth tax common invoice), pin side's information (title, identifier, address, bank of deposit and account), purchaser's information, product name, the tax rate, Inventory, remark information.Which no matter lacks in existing ticket information, all illustrates that the ticket information of candidate's invoice is endless It is whole.

If the ticket information of step S802, the described candidate invoice is complete, the ticket information of the candidate invoice is uploaded To in the invoice database and the block chain；

If the existing ticket information extracted shows that the ticket information of candidate invoice is complete, then will directly extract Ticket information is uploaded in invoice database and block chain, so that other users are in the whole ticket informations for needing to obtain the invoice When, pass through the partial information of the invoice, so that it may whole nominal values letter of the invoice is obtained from invoice database and/or block chain Breath.

If the ticket information of step S803, the described candidate invoice is imperfect, to the ticket information of the candidate invoice into The ticket information of the candidate invoice is uploaded in the invoice database and the block chain by row completion.

If the existing ticket information extracted shows that the ticket information of candidate invoice is imperfect, then suggesting that user should The ticket information of candidate invoice is imperfect, and points out the ticket information lacked in candidate's invoice, and prompt user timely right The ticket information of missing carries out perfect, the ticket information of completion candidate's invoice, then again believes the complete nominal value after completion Breath is uploaded in invoice database and block chain, with the information timely to candidate's invoice in invoice database and block chain It carries out improving update.

Fig. 9 is the structural schematic diagram of the managing bill system based on block chain according to shown in the 9th embodiment of the application； As shown in figure 9, the managing bill system includes:

Invoice and invoice information acquiring unit 901 are configured to obtain the candidate invoice for being associated with invoice event and the time Publish the element information of ticket；

Financing evidence status inquiry unit 902 is configured to the cochain request in response to the invoice event, according to The element information of candidate invoice inquires the financing evidence state of the candidate invoice in the block chain；

Target invoice screening unit 903 is configured to be filtered out from the candidate invoice according to the financing evidence state It is matched with the candidate invoice of the invoice event and as the target invoice for participating in the invoice event；

Financing evidence state updating unit 904, is configured to terminate in response to the invoice event, right in the block chain The financing evidence state of candidate invoice as the target invoice is updated.

Invoice management method operation stream shown in the operation and above-mentioned first embodiment of the managing bill system of the embodiment Journey is similar, and this is no longer going to repeat them.

Figure 10 is invoice and the structural schematic diagram of invoice information acquiring unit according to shown in the tenth embodiment of the application；Such as Shown in Figure 10, the invoice and invoice information acquiring unit include:

Invoice obtains module 1001, and the contract for being configured to the contract for being associated with the invoice event inputted according to user is wanted Element obtains the candidate invoice associated with the contract from invoice database；

Invoice information obtains module 1002, is configured to handle the candidate invoice, obtains the candidate invoice Element information.

The operation of the managing bill system of the embodiment is similar to operating process shown in above-mentioned second embodiment, herein not It repeats one by one again.

Figure 11 is invoice and the structural schematic diagram of invoice information acquiring unit according to shown in the 11st embodiment of the application； As shown in figure 11, the invoice and invoice information acquiring unit include:

Invoice verification module 1101, be configured to verifying user provide the candidate invoice for being associated with the invoice event whether For definite invoice；

Invoice information obtains module 1102, if being configured to the candidate invoice is definite invoice, to the candidate invoice into Row processing obtains the element information of the candidate invoice.

The operation of the managing bill system of the embodiment is similar to operating process shown in above-mentioned 3rd embodiment, herein not It repeats one by one again.

Figure 12 is the structural schematic diagram of the invoice verification module according to shown in the 12nd embodiment of the application；Such as Figure 12 institute Show, which includes:

Invoice format judgment sub-unit 1201, the candidate invoice for being configured to provide user carry out format identification, root Judge the candidate invoice with the presence or absence of format error according to format identification result；

The true and false judgment sub-unit 1202 of invoice, if being configured to the candidate invoice, there is no format errors, to the time It publishes ticket and carries out verification, judge whether the candidate invoice is definite invoice according to verification result.

The operation of the managing bill system of the embodiment is similar to operating process shown in above-mentioned fourth embodiment, herein not It repeats one by one again.

Figure 13 is the structural schematic diagram of the invoice format judgment sub-unit according to shown in the 13rd embodiment of the application；Such as figure Shown in 13, which includes:

Format verification acquisition of information submodule 1301 is configured to invoice identification micro services, to described in user's offer Candidate invoice carries out format identification, obtains the format verification information of the candidate invoice；

Format error judging submodule 1302 is configured to judge that the candidate invoice is according to the format verification information It is no that there are format errors.

The operation of the managing bill system of the embodiment is similar to operating process shown in above-mentioned 5th embodiment, herein not It repeats one by one again.

Figure 14 is the structural schematic diagram of the true and false judgment sub-unit of invoice according to shown in the 14th embodiment of the application；Such as figure Shown in 14, the true and false judgment sub-unit of the invoice includes:

Verification information extraction submodule 1401, if being configured to the candidate allocation, there is no format errors, are based on invoice It identifies micro services, the candidate invoice is identified, extract the verification information of the candidate invoice；

True and false judging submodule 1402 is configured to invoice verification micro services, according to the verification information to the time It publishes ticket to be verified, determines whether the candidate invoice is definite invoice according to verification result.

The operation of the managing bill system of the embodiment is similar to operating process shown in above-mentioned sixth embodiment, herein not It repeats one by one again.

Figure 15 is the structural representation of the managing bill system based on block chain according to shown in the 15th embodiment of the application Figure；Unlike embodiment illustrated in fig. 12, in the managing bill system of the embodiment, further includes: invoice verification result uploads The verification result of the candidate invoice is uploaded to the invoice number if being configured to the candidate invoice is definite invoice by unit According in library and the block chain.As shown in figure 15, which includes:

Have to prime information comparison module 1501, if being configured in the candidate invoice of user's offer, there are user's inputs Candidate invoice have to prime information, then by user's input have to prime information and the candidate invoice standard have to prime information into Row compares；

Invoice verification result uploading module 1502 is configured to be determined whether to upload the verification result according to comparison result To in the invoice database and the block chain.

The operation of the managing bill system of the embodiment is similar to operating process shown in above-mentioned 7th embodiment, herein not It repeats one by one again.

Figure 16 is the structural representation of the managing bill system based on block chain according to shown in the 16th embodiment of the application Figure；Unlike embodiment illustrated in fig. 12, in the managing bill system of the embodiment further include:

Ticket information inspection unit 1601 judges the candidate invoice if being configured to the candidate invoice is definite invoice Ticket information it is whether complete；

Ticket information storage unit 1602, if the ticket information for being configured to the candidate invoice is complete, by the candidate The ticket information of invoice is stored in the invoice database and the block chain；

Ticket information completion unit 1603, if the ticket information for being configured to the candidate invoice is imperfect, to the time The ticket information for publishing ticket carries out completion, and the ticket information of the candidate invoice is stored in the invoice database and the area In block chain.

The operation of the managing bill system of the embodiment is similar to operating process shown in above-mentioned 8th embodiment, herein not It repeats one by one again.

The embodiment of above-mentioned invoice management method and system based on block chain, by block chain to carry out invoice thing The candidate invoice of part carries out financing evidence status inquiry, filters out the target invoice that can be used for invoice event, and invoice event is completed Afterwards, the financing evidence state of target invoice is updated in block chain in time, can not be distorted using information in block chain Characteristic records the effective status of invoice, realizes effective control of invoice.

Meanwhile the embodiment of above-mentioned invoice management method and system can also realize the monitoring to invoice status.In the hair In ticket management method and system, by carrying out verification to the candidate invoice for carrying out invoice financing, realize to trade/transaction context Examination and monitoring, trade/transaction context authenticity is effectively proved by the state of candidate invoice, to award to user The effective data supporting of the offers such as letter, air control.By effective management to candidate invoice, realizes and whole process is carried out to VAT invoice Monitoring, record and status inquiry (states and the state for time such as the issuing, cancel of invoice, red punching), timely to for having demand It is abnormal that body (including financial institution, enterprise customer, reference unit etc.) is notified to the calcellation of the relevant invoice of trade/transaction, red punching etc. State.For example, inquiry user is used to rush the amount of money of red invoice, remark information (corresponding invoice by the sales invoice of acquisition user Code/number) etc..By the status inquiry interface in managing bill system, the state for rushing red invoice and state description have been exported ( Issue invoice and current state is normal or has cancelled or this invoice have confirmed that rush element information that is red and rushing red invoice or This invoice may rush element information that is red and rushing red invoice) etc..

The characteristic that block chain technology is traceable, can not distort is utilized in the invoice management method and system of above-described embodiment, Gold is accurately assisted by data such as true tax invoice, financing records in conjunction with lightweight, the micro services application of loose coupling Melt mechanism and check finance loan mortgage transaction evidence information, effectively tracking user financing loan documentation, so that it is receivable to reach prevention The purpose that money repeats financing, reduces supply chain financial risks.

Figure 17 is the structural representation of the managing bill system based on block chain according to shown in the 17th embodiment of the application Figure；It as shown in figure 17, include: financial institution 1701, micro services mechanism 1702, block chain operation machine in entire managing bill system Structure 1703 and regulatory agency 1704.1701 one side of financial institution can by call the managing bill system provide invoice Matching service matches institute associated with contract according to the contract information that enterprise customer 1706 provides from invoice database There is invoice information, in conjunction with paper invoice provided by enterprise customer 1706 or invoice image, forms the time of this invoice financing Publish ticket set.On the other hand it can be taken by image recognition, verification, the Supplementing Data etc. for calling the managing bill system to provide Business promotes financial institution to trade/transaction context authenticity discrimination capabilities.

Financial institution 1701 accesses the block chain network by the publicity node in the managing bill system.Financial institution 1701 conjunctions for invoice financing provided in the invoice financing application for receiving enterprise customer 1706 and enterprise customer 1706 The bill evidences such as same, paper invoice or invoice image, are uploaded to the managing bill system for the image of these bill evidences, propose Micro services request requests to identify the candidate invoice for participating in invoice financing, verification, status inquiry etc..

Micro services mechanism 1702 accesses the block chain network by the cochain node in the managing bill system, can basis The inquiry request to candidate invoice financing evidence state that financial institution proposes, inquires candidate's invoice from block chain network Financing evidence state, and the financing inquired evidence state is fed back into financial institution, and propose according to financial institution 1701 Invoice identification request provide invoice identify micro services；The invoice verification request proposed according to financial institution 1701 provides invoice and tests True micro services；If identification, verification candidate invoice ticket information it is imperfect, micro services mechanism 1702 returns to corresponding result To financial institution, enterprise customer 1706 is prompted to be modified the ticket information of the invoice by financial institution 1701, completion.

Micro services mechanism 1702 proves the feedback such as state, recognition result, verification result to the financing for inquiring candidate invoice To financial institution 1701, state is proved according to the financing of candidate invoice by financial institution 1701 and determines that candidate's invoice whether can For invoice financing, and according to recognition result judge candidate invoice with the presence or absence of format error, ticket information whether completely with It and whether is the operation such as definite invoice.Financial institution 1701 is after the feedback for receiving micro services mechanism 1702, if candidate invoice There is no format errors, and ticket information is complete, and verification result is shown as definite invoice, timely believe the nominal value of candidate's invoice Breath and verification result are uploaded in block chain network, to update the state of candidate's invoice in block chain network.

Financial institution 1701 proves state guidance enterprise customer 1706 to can be used in invoice according to the financing of candidate invoice The target invoice of financing is marked, to be used for invoice financing.After triggering invoice financing, financial institution 1701 will timely be used Be modified in the state as the candidate invoice of target invoice in block chain network of invoice financing, so as to other mechanisms into Row is inquired when needing.Other financial institutions 1701 use in the invoice financing application for receiving enterprise customer 1706 and enterprise The candidate a/d of 1706 proposed adoption of family, according to the element information of candidate invoice, whether query candidate invoice, which has been used for, melts Money evidence, if the query display invoice is not present, illustrates that the invoice can finance, and directly uploads candidate's invoice Into block chain network；If query display candidate's invoice has used, then enterprise customer 1706 cannot be provided Candidate invoice is used for invoice financing；If the query display invoice exists, but the financing evidence state of candidate's invoice is that nothing is melted Money evidence or financing evidence have been paid off, then candidate's invoice can also carry out invoice financing.

Herein, it should be pointed out that micro services mechanism 1702 also can to inquire candidate invoice financing prove state with And ticket information etc. is updated in block chain network by cochain node.

In the managing bill system, block chain operating agency 1703 passes through the operation node access in the managing bill system The block chain network is runed and is safeguarded to block chain network, guarantees the reliable and stable of the system.Regulatory agency 1704 passes through Supervisory node in the managing bill system accesses the block chain network, carries out to the invoice data being uploaded in block chain network Supervision is audited with rule are closed.

In the managing bill system, each member mechanism safeguards the block chain data account book for invoice financing jointly, will test Invoice data after very is registered into block chain data account book, is realized and is shared between each member to invoice financing information；Meanwhile benefit Be conducive to block chain technology in the inter-agency building of each member using invoice as the trusted context of Supply chain financing business voucher Financial institution 1701 reinforces Supply chain financing trade background authenticity and examines, effectively takes precautions against the risk that invoice repeats financing.For example, Financial institution 1701 carries out publicity mark after completing credit assessment, to the invoice registered into block chain data account book, utilizes area The characteristics such as anti-tamper, traceable of block chain technology, establish the information between invoice financing application enterprise customer 1706 and financial institution Symmetrical mechanism solves the problems, such as the mutual trust between each member of supply chain finance, and invoice repeats to melt during effectively taking precautions against Supply chain financing The risk of money avoids the situation of " ticket is borrowed more " from occurring.

Figure 18 is the configuration diagram of the block chain network according to shown in the 18th embodiment of the application；As shown in figure 18, In the block chain network framework, comprising: supply chain financial application service layer 1801, platform services layer 1802, block chain core layer 1803 and basal layer 1804 form.Wherein, supply chain financial application service layer 1801 can be used for invoice verification grade, enterprise Financing confirmation, financing authority publicity, authority state updates and supervision design.Platform services layer 1802 can be used for stream compression Service, money pipe management service, policing services, data query analysis, the service of block chain (Blockchain-as-a-Service, letter Claim BasS) and across chain protocol service.Include the technologies such as storage, calculating, peer-to-peer network composition in basal layer 1804.

Block chain core layer 1803 has application structure (Application Programming Interface, letter Claim API) and operation management function, including intelligent contract unit, block chain Floor layer Technology unit, operational system and management system. Intelligent contract unit can be used for contract generation, contract triggering, contract execution and contract administration；In block chain Floor layer Technology unit Including the mechanism, secret protection, rights management, cryptoguard, oversight mechanism, mass data storage technology, secure communication skill of knowing together The functions such as art and technology；Can be used in operational system system monitoring, intelligent deployment, log management, testing service, Warning Service, Configuration service, data displaying etc.；Supervisory systems can be used for user management, multichain management, intelligent contract administration, data visualization, Log management, node administration, CA management (CA: generate and determine digital certificate third party's trust authority), rights management and Consistency check etc..

In the embodiment, the block chain network of building can provide asset management and stream compression service, be suitable for supply chain Many business scopes for needing to construct trust systems such as finance, digital ticket, quality tracing.Realizing safe and reliable transaction pair Under the premise of connecing, by high performance block chain service and visual data management, help user be effectively reduced operation cost and Credit risk improves writing efficiency.

The block chain network meets the high frequency transaction in practical business based on high concurrent, expansible quick common recognition mechanism Demand；Close SM2/SM9, SM3 and SM4 algorithm of state is used in secure context, meets the reliable Policy Demand of internal security, supports third Square CA Attribute certificate and Role-based access control model, support fine-grained rights management；It is used in terms of secret protection The technologies such as zero-knowledge proof, ring signatures, homomorphic cryptography support the Privacy Preservation Mechanism that can be supervised；In data and intelligent contract side Big data storage and conditional information retrieval engine are supported in face, support the storage and quick search of mass data, provide Templated intelligence Contract reduces exploitation threshold, supports intelligent forms of contract chemical examination card, reduces loophole risk.

So far, the specific embodiment of this theme is described.Other embodiments are in the appended claims In range.In some cases, the movement recorded in detail in the claims can execute and still in a different order Desired result may be implemented.In addition, process depicted in the drawing not necessarily requires the particular order shown or continuous suitable Sequence, to realize desired result.In some embodiments, multitasking and parallel processing can be advantageous.

In the 1990s, the improvement of a technology can be distinguished clearly be on hardware improvement (for example, Improvement to circuit structures such as diode, transistor, switches) or software on improvement (improvement for method flow).So And with the development of technology, the improvement of current many method flows can be considered as directly improving for hardware circuit. Designer nearly all obtains corresponding hardware circuit by the way that improved method flow to be programmed into hardware circuit.Cause This, it cannot be said that the improvement of a method flow cannot be realized with hardware entities module.For example, programmable logic device (Programmable Logic Device, PLD) (such as field programmable gate array (Field Programmable Gate Array, FPGA)) it is exactly such a integrated circuit, logic function determines device programming by user.By designer Voluntarily programming comes a digital display circuit " integrated " on a piece of PLD, designs and makes without asking chip maker Dedicated IC chip.Moreover, nowadays, substitution manually makes IC chip, this programming is also used instead mostly " is patrolled Volume compiler (logic compiler) " software realizes that software compiler used is similar when it writes with program development, And the source code before compiling also write by handy specific programming language, this is referred to as hardware description language (Hardware Description Language, HDL), and HDL is also not only a kind of, but there are many kind, such as ABEL (Advanced Boolean Expression Language)、AHDL(Altera Hardware Description Language)、Confluence、CUPL(Cornell University Programming Language)、HDCal、JHDL (Java Hardware Description Language)、Lava、Lola、MyHDL、PALASM、RHDL(Ruby Hardware Description Language) etc., VHDL (Very-High-Speed is most generally used at present Integrated Circuit Hardware Description Language) and Verilog.Those skilled in the art also answer This understands, it is only necessary to method flow slightly programming in logic and is programmed into integrated circuit with above-mentioned several hardware description languages, The hardware circuit for realizing the logical method process can be readily available.

Controller can be implemented in any suitable manner, for example, controller can take such as microprocessor or processing The computer for the computer readable program code (such as software or firmware) that device and storage can be executed by (micro-) processor can Read medium, logic gate, switch, specific integrated circuit (Application Specific Integrated Circuit, ASIC), the form of programmable logic controller (PLC) and insertion microcontroller, the example of controller includes but is not limited to following microcontroller Device: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320 are deposited Memory controller is also implemented as a part of the control logic of memory.It is also known in the art that in addition to Pure computer readable program code mode is realized other than controller, can be made completely by the way that method and step is carried out programming in logic Controller is obtained to come in fact in the form of logic gate, switch, specific integrated circuit, programmable logic controller (PLC) and insertion microcontroller etc. Existing identical function.Therefore this controller is considered a kind of hardware component, and to including for realizing various in it The device of function can also be considered as the structure in hardware component.Or even, it can will be regarded for realizing the device of various functions For either the software module of implementation method can be the structure in hardware component again.

System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity, Or it is realized by the product with certain function.It is a kind of typically to realize that equipment is computer.Specifically, computer for example may be used Think personal computer, laptop computer, cellular phone, camera phone, smart phone, personal digital assistant, media play It is any in device, navigation equipment, electronic mail equipment, game console, tablet computer, wearable device or these equipment The combination of equipment.

For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this The function of each unit can be realized in the same or multiple software and or hardware when application.

It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net Network interface and memory.

Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/or The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium Example.

Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM), Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.

It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want There is also other identical elements in the process, method of element, commodity or equipment.

It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product. Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) Formula.

The application can describe in the general context of computer-executable instructions executed by a computer, such as program Module.Generally, program module includes routine, programs, objects, the group for executing particular transaction or realizing particular abstract data type Part, data structure etc..The application can also be practiced in a distributed computing environment, in these distributed computing environments, by Affairs are executed by the connected remote processing devices of communication network.In a distributed computing environment, program module can be with In the local and remote computer storage media including storage equipment.

All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method Part explanation.

The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal Replacement, improvement etc., should be included within the scope of the claims of this application.

Claims

1. a kind of invoice management method based on block chain characterized by comprising

Obtain the element information of the candidate invoice for being associated with invoice event and the candidate invoice；

In response to the cochain request of the invoice event, to be looked into the block chain according to the element information of the candidate invoice Ask the financing evidence state of the candidate invoice；

According to the financing evidence state, is filtered out from the candidate invoice and be matched with the candidate invoice of the invoice event simultaneously As the target invoice for participating in the invoice event；

Terminate in response to the invoice event, the financing of the candidate invoice as the target invoice is helped in the block chain Card state is updated.

2. invoice management method according to claim 1, which is characterized in that described to obtain the candidate for being associated with invoice event The element information of invoice and the candidate invoice includes:

According to user input the contract for being associated with the invoice event essence of a contract, from invoice database obtain with it is described The associated candidate invoice of contract；

The candidate invoice is handled, the element information of the candidate invoice is obtained.

3. invoice management method according to claim 1, which is characterized in that described to obtain the candidate for being associated with invoice event The element information of invoice and the candidate invoice further include:

Verify whether the candidate invoice for being associated with the invoice event that user provides is definite invoice；

If candidate's invoice is definite invoice, the candidate invoice is handled, obtains the element letter of the candidate invoice Breath.

4. invoice management method according to claim 3, which is characterized in that described according to being associated with for user's offer The candidate invoice of invoice event, verifies whether the candidate invoice is that definite invoice includes:

Format identification is carried out to the candidate invoice that user provides, whether the candidate invoice is judged according to format identification result There are format errors；

If format error is not present in candidate's invoice, verification is carried out to the candidate invoice, institute is judged according to verification result State whether candidate invoice is definite invoice.

5. invoice management method according to claim 4, which is characterized in that if there is no format mistakes for candidate's invoice Accidentally, then verification is carried out to the candidate invoice, according to verification result judge candidate's invoice whether be definite invoice step it Afterwards, further includes: if candidate's invoice is definite invoice, the verification result of the candidate invoice is uploaded to the invoice data In library and the block chain.

6. invoice management method according to claim 5, which is characterized in that if candidate's invoice is true hair Ticket, the verification result of the candidate invoice is uploaded in the invoice database and the block chain includes:

If in the candidate invoice that user provides there are the candidate invoice of user's input have to prime information, by user Input have to prime information with it is described candidate invoice standard have to prime information be compared；

Determine whether for the verification result to be uploaded in the invoice database and the block chain according to comparison result.

7. invoice management method according to claim 4, which is characterized in that if there is no format mistakes for candidate's invoice Accidentally, then verification is carried out to the candidate invoice, according to verification result judge candidate's invoice whether be definite invoice step it Afterwards, further includes:

If candidate's invoice is definite invoice, judge whether the ticket information of the candidate invoice is complete；

If the ticket information of candidate's invoice is complete, the ticket information of the candidate invoice is uploaded to the invoice data In library and the block chain；

If the ticket information of candidate's invoice is imperfect, completion is carried out to the ticket information of the candidate invoice, by institute The ticket information for stating candidate invoice is uploaded in the invoice database and the block chain.

8. invoice management method according to claim 4, which is characterized in that the candidate invoice that user is provided into Row format identification, after judge the step of candidate invoice whether there is format error according to format identification result, further includes:

If there are format errors for candidate's invoice, user is prompted to carry out format change to the candidate invoice of offer, and Format identification is re-started to the candidate invoice after format change, the candidate invoice after judging format change is wrong with the presence or absence of format Accidentally.

9. according to any invoice management method of claim 4-8, which is characterized in that the time provided user It publishes ticket and carries out format identification, judge that the candidate invoice includes: with the presence or absence of format error according to format identification result

Micro services are identified based on invoice, and format identification is carried out to the candidate invoice that user provides, obtains the candidate invoice Format verification information；

According to the format verification information, judge the candidate invoice with the presence or absence of format error.

10. according to any invoice management method of claim 4-8, which is characterized in that if candidate's invoice is not There are format errors, then carry out verification to the candidate invoice, judge whether the candidate invoice is true according to verification result Invoice includes:

If format error is not present in candidate's invoice, micro services are identified based on invoice, the candidate invoice is identified, Extract the verification information of the candidate invoice；

Based on invoice verification micro services, the candidate invoice is verified according to the verification information, it is true according to verification result Whether the fixed candidate invoice is definite invoice.

11. a kind of managing bill system based on block chain characterized by comprising

Invoice and invoice information acquiring unit are configured to obtain the candidate invoice for being associated with invoice event and the candidate invoice Element information；

Financing evidence status inquiry unit is configured to the cochain request in response to the invoice event, according to the candidate hair The element information of ticket inquires the financing evidence state of the candidate invoice in the block chain；

Target invoice screening unit is configured to filter out and be matched with from the candidate invoice according to the financing evidence state The candidate invoice of the invoice event and as the target invoice for participating in the invoice event；

Financing evidence state updating unit, is configured to terminate in response to the invoice event, to as institute in the block chain The financing evidence state for stating the candidate invoice of target invoice is updated.

12. managing bill system according to claim 1, which is characterized in that the invoice and invoice information acquiring unit Include:

Invoice obtains module, the essence of a contract of the contract for being associated with the invoice event inputted according to user is configured to, from hair The candidate invoice associated with the contract is obtained in ticket data library；

Invoice information obtains module, is configured to handle the candidate invoice, obtains the element information of the candidate invoice.

13. managing bill system according to claim 1, which is characterized in that the invoice and invoice information acquiring unit Include:

Invoice verification module, is configured to whether the candidate invoice for being associated with the invoice event that verifying user provides is really to send out Ticket；

Invoice information obtains module, if being configured to the candidate invoice is definite invoice, handles the candidate invoice, obtains Take the element information of the candidate invoice.

14. managing bill system according to claim 13, which is characterized in that the invoice verification module includes:

Invoice format judgment sub-unit, the candidate invoice for being configured to provide user carry out format identification, are known according to format Other result judges the candidate invoice with the presence or absence of format error；

The true and false judgment sub-unit of invoice, if being configured to the candidate invoice there is no format error, to the candidate invoice into Row verification judges whether the candidate invoice is definite invoice according to verification result.

15. managing bill system according to claim 14, which is characterized in that further include: leaflet in invoice verification result The verification result of the candidate invoice is uploaded to the invoice data if being configured to the candidate invoice is definite invoice by member In library and the block chain.

16. managing bill system according to claim 15, which is characterized in that the invoice verification result uploading unit packet It includes:

Have to prime information comparison module, if being configured in the candidate invoice of user's offer, there are the candidates of user's input Invoice have to prime information, then by user input have to prime information and it is described candidate invoice standard have to prime information compare It is right；

Invoice verification result uploading module is configured to be determined whether the verification result being uploaded to the hair according to comparison result In ticket data library and the block chain.

17. managing bill system according to claim 14, which is characterized in that further include:

Ticket information inspection unit judges the nominal value letter of the candidate invoice if being configured to the candidate invoice is definite invoice It whether complete ceases；

Ticket information storage unit, if the ticket information for being configured to the candidate invoice is complete, by the ticket of the candidate invoice Face information is uploaded in the invoice database and the block chain；

Ticket information completion unit, if the ticket information for being configured to the candidate invoice is imperfect, to the candidate invoice Ticket information carries out completion, and the ticket information of the candidate invoice is uploaded to the invoice database and the block chain In.

18. managing bill system according to claim 14, which is characterized in that the invoice verification module further include:

Invoice format changes subelement, if being configured to the candidate invoice, there are format errors, prompts user to the institute of offer It states candidate invoice and carries out format change, and format identification is re-started to the candidate invoice after format change, judge that format is changed Candidate invoice afterwards whether there is format error.

19. any managing bill system of 4-18 according to claim 1, which is characterized in that invoice format judgement Unit includes:

Format verification acquisition of information submodule is configured to invoice identification micro services, the candidate invoice provided user Format identification is carried out, the format verification information of the candidate invoice is obtained；

Format error judging submodule is configured to judge the candidate invoice with the presence or absence of lattice according to the format verification information Formula mistake.

20. any managing bill system of 4-18 according to claim 1, which is characterized in that true and false judgement of invoice Unit includes:

Verification information extraction submodule, if being configured to the candidate invoice, there is no format errors, in incognito based on invoice identification Business identifies the candidate invoice, extracts the verification information of the candidate invoice；

True and false judging submodule is configured to invoice verification micro services, according to the verification information to the candidate invoice into Row verifying determines whether the candidate invoice is definite invoice according to verification result.